Roofing-cleat.



H. C. KETTELSON.

ROOFING CLEAT.

APPLICATION FILED APR. 20. 1911.

Patented July 23, 1918.

k Willy, W I

UNITED STATESPATENT OFFICE.

HARRY C. KETTELSON, 0F MILWAUKEE, WISCONSIN.

ROOFING-CLEAT.

Application filed April 20. 1917.

To all whom it may concern:

Be it known that I, I'IARRY C. KnT'rnL- sort, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of \Visconsin, have invented certain new and useful Improvements in Roofing-Cleats; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to new and useful improvements in elongated metallic cleats adapted for securing roofing sheets to the roof boards of buildings.

Such cleats heretofore contemplated are provided with bracing means comprising one or more longitudinally extending ribs struck upwardly from the body of the cleat and which possess the disadvantage of permitting accumulation of water in the consequent pocket formed in the cleat thus permitting rusting of the cleat and nails, and which possess the further disadvantage of obstructing the passage of water over the roofing. Therefore the ideal cleat would comprise an entirely flat cleat plate, but the provision of a flat cleat plate with sufficient stiffness to procure a clamping action throughout its length is commercially impractical.

In view of the foregoing it is primarily the object of my invention to provide a roofing cleat having longitudinal bracing means so disposed as to eliminate the dis advantages of the upstanding bracing ribs heretofore provided, and more specifically my invention consists in providing the sole bracing means of the cleat in the form of a laterally turned flange at one side edge thereof, whereby said flange may lie within the recess afforded by the lapped end of the. uppermost sheet of roofing material to permit the entire remaining portion of the cleat to lie flat upon the sheet of rooting, this flange portion incidentally serving also as a seal for the seam provided by the lapped ends of the roofing sheets.

Inasmuch as roofing sheets may differ considerably in thickness, such sheets being supplied in differing plies, it is further an object to provide an arrangement whereby the flange portion is resiliently ad ustable to accomodate' such differing thicknesses of roofing material.

With the above and other objects and advantages in view, the invention resides more particularly in the novel combination,

Specification of Letters Patent.

Patented July 23, 1918.

Serial No. 163.350.

formation and arrangement of parts. hereinafter described and pointed out in the appended claim.

In the drawings:

Figure 1 is a plan view of a roofing cleat constructed in accordance with my invention.

Fig. 2 is a longitudinal sectional view through the cleat on the line 2-2 of Fig. 1. showing more particularly the flat nature of the body of the cleat.

Fig. 3 is a transverse sectional view through the cleat on the line 33 of Fig. 1.

Fig. 4 is a transverse sectional view through the cleat on the line 4l of Fig. 1.

Fig. 5 is an enlarged sectional view taken transversely through the cleat and showing more particularly the resilient adjustment of the bracing flange and seal.

Fig. 6 is a detail plan view showing the manner of applying the invention where more than two edges of the roofing material come together. and

Fi 7 is a detail transverse section on the line '7 of Fig. 6.

Referring now more particularly to the accompanying drawings. my improved cleat comprises a flat elongated metallic body plate 5, and one side edge portion (3 of this plate is bent laterally at a right angle, and then curved outwardly. the tangent of the outer extremity of said edge portion being at a slight acute angle to the body of the cleat whereby to yieldably engage an under-most sheet of roofing material in such manner as not to bite into the roofing, nor

yet incline away there-from to form a possible water pocket upon considerable flattening of the flange. due to the relatively slight thickness of rooting material. Any possible danger which otherwise might exist of the edge of the portion 6 cutting into the undermost sheet of rooting is obviated by the slight curvature and spring action of the same, said roofing being engaged only by the bottom surface thereof.

At regularly spaced intervals, the cleat is provided with upwardly struck cup portions 7 centrally apertured to receive the securing nails of the cleat. The provision of the cup portions 7 allows the securing nails to be inserted through the fiat body plate 5 without causing the warping of the same. In other words, the cup portions receive and absorb the entire drivin strain of the nails.

With the exception of these cup portions ill] and the bracing flange 6, the cleat is thus entirely flat and when disposed upon roofing as shown more particularly in Figs. 3 and 4:, the body 5 rests snugly againstthe face of the roofing material and the flange 6 which lends suflicient longitudinal stiffness to the cleat is disposed in the recess afforded by the over-lapped edge of the uppermost sheet of roofing material. The edges of the cups 7 form an eflicient seal for the space inclosed thereby, and thus the possibility of accumulation of water within the cleat is prevented and at the same time the body of the cleat does not obstruct the passage of Water over the roofing, as in those types of cleats including rib portions upstanding from the body plane of the cleat.

When more than two pieces of roofing material over-lap the cleats are arranged somewhat as shown in Figs. 6 and 7. In this case the longitudinal cleat 5 has its flange 6 slit as shown at 8 to compensate for the change in elevation between one por tion of the roofing material and the over lapping piece. This slit is thus made at the point where the edge of one piece of roof ing material intersects the edge of the other. The end of the transverse cleat 5 has its end cut off at an angle to correspond with the inclination of the longitudinal cleat 5' with respect to the edge of the piece of roofing material which the former cleat is designed to overlie. Both of the cleats are held in position by suitable fastening elements as above mentioned, and it is obvious that a very simply constructed water-tight joint is formed.

ll am aware that it has been heretofore contemplated to provide a laterally turned flange portion at the side edge of the cleat roofing material, such biting action being harmful to the roofing material, more particularly in view of the relatively greater pressure which would be incidental. to a slight thickness of the upper sheet of root ing material.

l/Vhat is claimed A roofing cleat comprising a fiat elongated body plate adapted to lie snugly against an uppermost sheet of roofing material without cutting into the same, said 1 body plate having a nail receiving cup portion struck therefrom whereby to relieve the flat portion of the plate from the driving strains of the nail to prevent it from Warping, and a downwardly extending transversely curved flange formed on one longitudinal edge of the body plate, said flange being adapted to have its underside surface yieldingly engaged with an undermost sheet of roofing material.

lln testimony that l claim the foregoing l have hereunto set my hand at Milwaukee, in the county of Milwaukee and State of Wisconsin.

HARRY Cl KETTFR Sinai 

